Keep your pooch busy and satisfied while giving them a boost of collagen. Top Dog Chews 95% Collagen 12-in Beef Sticks Dog Treats are crafted with 95% collagen. Collagen helps promote mobility and flexibility, help relieve joint pain and stiffness, and support skin, coat and digestive health. Your dog will enjoy these these long-lasting, limited ingredient chews, they will also be support the overall health and well-being!